Concrete waste sand-gravel separator

Abstract

The invention relates to the technical field of sand and stone separation in concrete treatment, in particular to a concrete waste sand and stone separator which comprises a separator base, a separation cavity is formed in the separator base, a separation mechanism is arranged in the separation cavity and connected with a transmission mechanism through a belt, and a filtering mechanism is movably connected into a water storage cavity. The water storage cavity is formed in the separating machine base, the filtering mechanism moves downwards along with the increase of filtered small gravel, and when the filtering mechanism moves to the lowest position, the telescopic cylinder drives the take-up wheel to move. Concrete is stirred through the stirring mechanism and then discharged into the separation cavity, and then the concrete is conveyed and screened through the separation mechanism, so that large-particle gravel moves along the upper side of the separation mechanism, the large-particle gravel is dried faster, and the caking condition is prevented; and the separated small-particle gravel and sand cannot be continuously used.

Description

Technical Field

[0001] This invention relates to the field of concrete processing sand and gravel separation technology, specifically to a concrete waste sand and gravel separator. Background Technology

[0002] Construction waste refers to the waste generated during the construction, renovation, expansion, or demolition of buildings. Among these, concrete waste is the most common type of construction waste. Sand and gravel separators are also known as sand screening machines. Ready-mixed concrete refers to concrete mixtures made from cement, aggregates, water, and, as needed, admixtures and mineral admixtures, mixed in a certain proportion at a mixing plant, and then transported to the site of use within a specified time. The production process of ready-mixed concrete generates a large amount of wastewater and waste residue. If these waste concretes are not recycled and treated, it will not only cause a large waste of resources but also pollute the environment and create public hazards.

[0003] For example, Chinese patent CN104815834B discloses a sand and gravel separator, including a separator base, a power system, a separator cover, a screening system, a sand conveying hopper, and a stone conveying hopper. The screening system includes a conical material cylinder, a conical auger adapted to the conical material cylinder, and an outer auger outside the conical material cylinder. The side wall of the conical material cylinder is provided with screen holes. One side of the separator base is provided with a feed inlet, and the other side of the separator base is provided with an overflow outlet.

[0004] However, the above solution has the following shortcomings: In the above patent, the concrete is driven forward by a conical auger. When it passes through the first screen hole, a large amount of mud and sand will fall into the separator base. Then, the sand and water are transported forward by the external auger. The sand and mud are then separated by the scraper bucket and discharged to the sand outlet. This separation method will cause the smaller sand and gravel to remain mixed with cement after being separated, which will prevent them from drying quickly after being screened out. This may lead to solidification, making it impossible to reuse the separated smaller sand and gravel. Therefore, we have introduced a concrete waste sand and gravel separator. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete waste sand and gravel separator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A concrete waste sand and gravel separator includes a separator base with a separation chamber inside. A separation mechanism is installed within the separation chamber. The separation mechanism is connected to a transmission mechanism via a belt. The transmission mechanism is located within the separator base and drives the belt to move, thereby separating large and small sand and gravel, as well as mortar water, from the concrete. Large sand and gravel are moved along the upper side of the separation mechanism, while small sand and gravel are moved along the lower side. A mixing mechanism is fixedly connected to the upper end of the separator base, and a feed hole is provided inside the upper end of the separator base. The mixing mechanism communicates with the separation chamber through the feed hole and breaks up any lumps in the concrete. A filter plate is fixedly connected inside the separation chamber. The end of the filter plate away from the separation mechanism extends out of the separator base. A filter mechanism is provided on the lower side of the filter plate. The filter mechanism is movably connected to the water storage chamber. The water storage chamber is opened inside the separator base. The filter mechanism filters small sand and muddy water. As the amount of small sand and gravel filtered increases, the filter mechanism moves downward. A pull rope is fixedly connected to the upper end of the filter mechanism. The pull rope, at the end furthest from the filter mechanism, passes through the separator base and wraps around the outside of the take-up reel. The take-up reel is located inside the separator base and is movably connected to the output end of the telescopic cylinder. The telescopic cylinder is fixedly connected inside the separator base. A square hole is opened in the end of the take-up reel furthest from the telescopic cylinder, and a square rod is provided at the end of the take-up reel furthest from the telescopic cylinder. The square rod is fixedly connected to the transmission mechanism. When the filter mechanism moves to its lowest position, the telescopic cylinder drives the take-up reel to move, causing the square rod to engage in the square hole. The transmission mechanism then drives the filter mechanism back to its original position, causing the small sand and gravel filtered by the filter mechanism to be pushed out.

[0007] Preferably, the separation mechanism includes several sets of spiral conveying rollers and rollers, all of which are movably connected to the separation chamber. One end of each spiral conveying roller extends out of the separation base and is fixed with a first gear. A belt is sleeved on the outside of each set of first gears, and the sets of first gears are connected to a second gear through the belt.

[0008] Preferably, the transmission mechanism includes a second gear, which is fixedly connected to the output end of the first dual-axis motor. The first dual-axis motor is fixedly installed inside the separator base, and the other output end of the first dual-axis motor is fixedly connected to a square rod.

[0009] Preferably, the stirring mechanism includes a stirring box, which is fixedly connected to the upper end of the separator base, and an electric stirring rod is installed inside the stirring box. Preferably, a circulating pump is fixedly connected to the upper end of the separator base, the output end of the circulating pump extends into the separation chamber and is fixedly connected to several sets of nozzles, and the input end of the circulating pump extends into the water storage chamber.

[0010] Preferably, the filtering mechanism includes a connecting plate, a pull rope fixedly connected to the upper end of the connecting plate, a plurality of filter holes formed in the upper end of the connecting plate, two sets of push plates movably connected to the upper end of the connecting plate, slide rods fixedly connected to both sides of the connecting plate, the slide rods slidingly engaging in a slide groove, the slide groove being formed in the separator base, a first spring fixedly connected in the slide groove, the other end of the first spring being fixedly connected to the slide rod, a guide rod sleeved inside the first spring, the upper end of the guide rod being fixedly connected to the slide rod, and the lower end being movably connected to the separator base, and a second push switch fixedly installed in the upper and lower ends of one set of the slide grooves.

[0011] Preferably, guide blocks are fixedly connected to both ends of the push plate, the guide blocks slide in the guide groove, the guide groove is respectively opened in the connecting plate and the separator base, a second spring is fixedly connected in the guide groove, the other end of the second spring is fixedly connected to the guide block, and a first push switch is fixedly installed in a set of the guide grooves.

[0012] Preferably, a second dual-axis motor is fixedly installed inside the connecting plate. Both output ends of the second dual-axis motor are fixedly connected to pulleys. A traction rope is fixedly connected to the outside of the pulleys. The end of the traction rope away from the pulleys extends into the guide groove and is fixedly connected to the guide block.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: after the concrete is stirred by the mixing mechanism, it is discharged into the separation chamber, and then the separation mechanism conveys and screens the concrete, so that large particles of sand and gravel move along the upper side of the separation mechanism, while small particles of sand and gravel and water move along the lower side of the separation mechanism. The large particles of sand and gravel move to the filter plate and are finally discharged, while the small particles of sand and gravel fall to the upper end of the filter mechanism, so that the small particles of sand and gravel are separated from the water and are finally discharged. This achieves the separation of large particles of sand and gravel from small particles of sand and gravel, and at the same time, it separates the discharged small particles of sand and gravel from the water, allowing them to dry faster and preventing clumping, which would render the separated small particles of sand and gravel unusable. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a three-dimensional top-section structural diagram of the present invention; Figure 4 This is a three-dimensional structural diagram illustrating the connection relationship between the pull rope and the connecting plate of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the connecting plate of the present invention; Figure 6This is a top-section schematic diagram of the separator base of the present invention.

[0015] In the diagram: 1. Separator base; 2. Second gear; 3. First dual-shaft motor; 4. Belt; 5. First gear; 6. Roller; 7. Spiral transmission roller; 8. Feed hole; 9. Mixing tank; 10. Second spring; 11. Electric stirring rod; 12. Circulating pump; 13. Nozzle; 14. Separation chamber; 15. Filter plate; 16. Pull rope; 17. Slide rod; 18. Slide groove; 19. Water storage chamber; 20. Connecting plate; 21. Square rod; 22. Guide block; 23. First spring; 24. Take-up reel; 25. Telescopic cylinder; 26. Push plate; 27. Guide groove; 28. Second dual-shaft motor; 29. ​​Pulley; 30. First push switch; 31. Filter hole; 32. Traction rope; 33. Square hole; 34. Second push switch; 35. Guide rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-6 The present invention provides a technical solution: Example 1: A concrete waste sand and gravel separator includes a separator base 1, a separation chamber 14 inside the separator base 1, a separation mechanism inside the separation chamber 14, and a transmission mechanism connected to a drive mechanism via a belt 4. The drive mechanism drives the belt 4 to move, which in turn drives the separation mechanism to separate large and small sand and gravel, as well as mortar water, from the concrete. Large sand and gravel are moved along the upper side of the separation mechanism, while small sand and gravel are moved along the lower side. A mixing mechanism is fixedly connected to the upper end of the separator base 1, and a feed hole 8 is provided inside the upper end of the separator base 1. The mixing mechanism is connected to the separation chamber 14 through the feed hole 8 and breaks up any lumps of concrete that are about to enter the separation chamber 14. A filter plate 15 is fixedly connected inside the separation chamber 14, with one end of the filter plate 15 extending out of the separator base 1 away from the separation mechanism. The filter plate 15 guides large sand and gravel particles, and during the process of guiding the large sand and gravel particles, some mortar water passes through the filter plate 15 and falls into a water storage chamber 19.

[0018] A filtration mechanism is provided on the lower side of the filter plate 15. The filtration mechanism is movably connected to the water storage chamber 19, which is located within the separator base 1. The filtration mechanism filters small sand and muddy water. As more small sand is filtered, the filtration mechanism moves downward. A pull rope 16 is fixedly connected to the upper end of the filtration mechanism. The end of the pull rope 16 away from the filtration mechanism passes through the separator base 1 and is wound around the outside of the take-up reel 24. The take-up reel 24 is located within the separator base 1 and is movably connected to the telescopic cylinder 25. At the output end, the telescopic cylinder 25 is fixedly connected to the separator base 1. A square hole 33 is opened in the end of the take-up reel 24 away from the telescopic cylinder 25. A square rod 21 is provided at the end of the take-up reel 24 away from the telescopic cylinder 25. The square rod 21 is fixedly connected to the transmission mechanism. When the filter mechanism moves to the lowest position, the telescopic cylinder 25 drives the take-up reel 24 to move, so that the square rod 21 is engaged in the square hole 33. The transmission mechanism drives the filter mechanism back to the original position, and the small sand and gravel filtered by the filter mechanism are pushed out.

[0019] Example 2: Based on Example 1, in order to separate small particles of sand and gravel from the water source, and to ensure that the connecting plate 20 can return to its original position after being pressed to the bottom, the separation mechanism includes several sets of spiral transmission rollers 7 and rollers 6. The spiral transmission rollers 7 and rollers 6 are movably connected in the separation chamber 14. One end of the spiral transmission roller 7 extends out of the separator base 1 and is fixed with a first gear 5. The outer side of the several sets of first gears 5 is sleeved with a belt 4. The several sets of first gears 5 are connected to the second gear 2 through the belt 4. When the first dual-shaft motor 3 is turned on, it drives the second gear 2 connected to its output end to start rotating. The rotation of the second gear 2 drives the several sets of first gears 5 to start rotating through the belt 4. During the rotation of the several sets of first gears 5, it drives the corresponding spiral transmission rollers 7 to start rotating. At this time, the concrete entering the separation chamber 14 begins to move under the transmission of the several sets of spiral transmission rollers 7. The transmission mechanism includes the second gear 2, which is fixedly connected to the output end of the first dual-shaft motor 3. The first dual-shaft motor 3 is fixedly installed in the separator base 1. The other output end of the first dual-shaft motor 3 is fixedly connected to the square rod 21.

[0020] The mixing mechanism includes a mixing tank 9, which is fixedly connected to the upper end of the separator base 1. An electric mixing rod 11 is installed inside the mixing tank 9 to introduce concrete into the mixing tank 9. The concrete entering the mixing tank 9 is mixed by the electric mixing rod 11 and then enters the separation chamber 14. A circulation pump 12 is fixedly connected to the upper end of the separator base 1. The output end of the circulation pump 12 extends into the separation chamber 14 and is fixedly connected to several sets of nozzles 13. The input end of the circulation pump 12 extends into the water storage chamber 19. By turning on the circulation pump 12, the water source in the water storage chamber 19 can be pumped into several sets of nozzles 13. The water source sprayed from several sets of nozzles 13 can wash the mud and sand on the surface of the sand and gravel.

[0021] The filtration mechanism includes a connecting plate 20, with a pull rope 16 fixedly connected to the upper end of the connecting plate 20. Several sets of filter holes 31 are opened in the upper end of the connecting plate 20. Two sets of push plates 26 are movably connected to the upper end of the connecting plate 20. The sand and gravel on the upper end of the connecting plate 20 can be pushed into the external environment through the push plates 26. Slide rods 17 are fixedly connected to both sides of the connecting plate 20. The slide rods 17 slide in the slide grooves 18. The slide grooves 18 are opened in the separator base 1. A first spring 23 is fixedly connected in the slide grooves 18. The other end of the first spring 23 is fixedly connected to the slide rod 17. A guide rod 35 is sleeved on the inner side of the first spring 23. The upper end of the guide rod 35 is fixedly connected to the slide rod 17, and the lower end is movably connected to the separator base 1. The first spring 23 located in the slide grooves 18 can make the connecting plate 20 always raised in the normal state. A second push switch 34 is fixedly installed in the upper and lower ends of a set of slide grooves 18.

[0022] Guide blocks 22 are fixedly connected to both ends of the push plate 26. The guide blocks 22 slide in the guide groove 27. The guide groove 27 is respectively opened in the connecting plate 20 and the separator base 1. A second spring 10 is fixedly connected in the guide groove 27. The other end of the second spring 10 is fixedly connected to the guide block 22. A first push switch 30 is fixedly installed in a set of guide grooves 27. A second dual-axis motor 28 is fixedly installed in the connecting plate 20. Both output ends of the second dual-axis motor 28 are fixedly connected to pulleys 29. A traction rope 32 is fixedly connected to the outside of the pulley 29. The end of the traction rope 32 away from the pulley 29 extends into the guide groove 27 and is fixedly connected to the guide block 22.

[0023] Working principle: During use, concrete is poured into the mixing tank 9. The concrete, under the agitation of the electric mixing rod 11, enters the separation chamber 14. At this time, the first dual-shaft motor 3 is turned on, driving the second gear 2 connected to its output end to rotate. The rotation of the second gear 2, via the belt 4, drives several sets of first gears 5 to rotate. During this rotation, the first gears 5 drive their corresponding spiral conveyor rollers 7 to rotate. The concrete entering the separation chamber 14 then moves under the transmission of the spiral conveyor rollers 7, and as the concrete... The soil is continuously transported. Larger sand and gravel in the concrete can move along the upper side of several sets of spiral conveyor rollers 7, while smaller sand and gravel and mud can move along the lower side of the spiral conveyor rollers 7. Under the action of the circulating pump 12, the water source in the water storage chamber 19 is pumped into several sets of nozzles 13 and sprayed out. The water source sprayed out by the nozzles 13 can wash the mud and sand on the surface of the sand and gravel. Larger sand and gravel will eventually be transported to the upper end of the filter plate 15 and finally discharged into the external environment. Smaller sand and gravel and mud water will be transported to the upper end of the connecting plate 20. Since the upper end of the connecting plate 20 is provided with several sets of filter holes 31, the smaller gravel and sand in the mud water will be filtered at the upper end of the connecting plate 20, while the water source will enter the water storage chamber 19 for storage. As more and more gravel accumulates at the upper end of the connecting plate 20, the connecting plate 20 will be pressed down and moved. The movement of the connecting plate 20 will drive the slide rod 17 to move synchronously along the slide groove 18. At this time, the first spring 22 is compressed. When the slide rod 17 contacts the second push switch 34 on the lower side, the telescopic cylinder 25 will be activated and drive the take-up reel 24 connected to its output end to start moving, so that the square rod 21 is engaged in the square hole 33. At this time, the take-up reel 24 will be driven by the first dual-axis motor 3 to start rotating. The rotation of the take-up reel 24 winds up the pull rope 16. After being wound up, the pull rope 16 will be pulled upward. When the slide bar 17 contacts the second push switch 34 on the upper side, the first dual-axis motor 3 will be in a self-locking state. At the same time, the second dual-axis motor 28 will start rotating, driving the pulleys 29 connected to its two output ends to start rotating. The rotation of the pulleys 29 winds up the traction rope 32. The movement of the traction rope 32 drives the guide block 22 to start moving. The movement of the guide block 22 drives the push... Plate 26 begins to move. During the movement, the push plate 26 pushes the sand and gravel carried on the upper end of the connecting plate 20 into the external environment. When a set of guide blocks 22 comes into contact with the first push switch 30, the second dual-axis motor 28 is turned off. Under the elastic force of the second spring 10, the push plate 26 returns to its original position. At the same time, the telescopic cylinder 25 drives the take-up reel 24 to move, causing the square rod 21 to disengage from the square hole 33. At this time, the first dual-axis motor 3 will start to rotate again. The operator can then collect the large sand and gravel, small sand and gravel, and mud that are discharged separately.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete waste aggregate separator comprising a separator housing, characterised in that: The separation seat is provided with a separation cavity, and a separation mechanism is arranged in the separation cavity and connected with a transmission mechanism through a belt. A filter plate is fixedly connected in the separation cavity and extends out of the separation seat at one end away from the separation mechanism. The other end of the rope away from the filter mechanism penetrates through the separation seat and is wound on the outside of a take-up wheel.

2. A concrete waste aggregate separator according to claim 1, characterised in that: The take-up wheel is arranged in the separation seat and movably connected with the output end of a telescopic cylinder.

3. A concrete waste aggregate separator according to claim 2, characterised in that: The telescopic cylinder is fixedly connected in the separation seat.

4. A concrete waste aggregate separator according to claim 1, characterised in that: The other end of the take-up wheel away from the telescopic cylinder is provided with a square hole and a square rod.

5. A concrete waste aggregate separator according to claim 1, characterized in that: The separation mechanism comprises a plurality of groups of spiral transmission rollers and rollers. The transmission mechanism comprises a second gear fixedly connected with the output end of a first double-shaft motor. The first double-shaft motor is fixedly installed in the separation seat. The first double-shaft motor is fixedly connected with the other end of the square rod. The stirring mechanism comprises a stirring box fixedly connected with the upper end of the separation seat. The stirring box is provided with an electric stirring rod. The upper end of the separation seat is fixedly connected with a circulating pump. The output end of the circulating pump extends into the separation cavity and is fixedly connected with a plurality of nozzles. The input end of the circulating pump extends into the water storage cavity.

6. A concrete waste aggregate separator according to claim 1, characterized in that: The filtering mechanism comprises a connecting plate, a pull rope fixedly connected to the upper end of the connecting plate, a plurality of groups of filtering holes opened in the upper end of the connecting plate, two groups of push plates movably connected to the upper end of the connecting plate, a sliding rod fixedly connected to the two sides of the connecting plate, the sliding rod being slidably connected in a sliding groove, the sliding groove being opened in a separator base, a first spring fixedly connected in the sliding groove, the other end of the first spring being fixedly connected with the sliding rod, a guide rod sleeved on the inner side of the first spring, the upper end of the guide rod being fixedly connected with the sliding rod, the lower end of the guide rod being movably connected in the separator base, and a second pressing switch fixedly installed in the upper end and the lower end of each of the sliding grooves.

7. A concrete waste aggregate separator according to claim 6, characterised in that: The two ends of each of the push plates are fixedly connected with guide blocks, the guide blocks are slidably connected in guide grooves, the guide grooves are respectively opened in the connecting plate and the separator base, second springs are fixedly connected in the guide grooves, the other ends of the second springs are fixedly connected with the guide blocks, and a first pressing switch is fixedly installed in each of the guide grooves.

8. A concrete waste aggregate separator according to claim 7, characterised in that: A second double-shaft motor is fixedly installed in the connecting plate, belt wheels are fixedly connected to the two output ends of the second double-shaft motor, traction ropes are fixedly connected to the outer sides of the belt wheels, the traction ropes are inserted into the guide grooves away from the belt wheels, and the traction ropes are fixedly connected with the guide blocks.

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